“In case you saw the conspiracy theory running around,” she wrote, “conservative groups have now taken to spamming us by filing bogus ethics complaints so that Fox News can report on ‘alleged,’ untrue scandals.”

Ms Ocasio-Cortez posted a link to an NBC News fact-check, which directly refuted the notion her campaign had violated any laws.

Her campaign attorney said in a statement to reporters on Wednesday that groups affiliated with the campaign “have at all times been fully in compliance with federal campaign finance laws.”

The report she linked to noted the complexities surrounding some aspects of her campaign and its vendors system, but campaign finance experts told the outlet there appeared to be no evidence of wrongdoing.

In case you saw the conspiracy theory running around, conservative groups have now taken to spamming us by filing bogus ethics complaints so that Fox News can report on “alleged,” untrue scandals.

The conservative groups has accused Ms Ocasio-Cortez of an “extensive off-the-books operation to make hundreds of thousands of dollars of expenditures in support of multiple candidates for federal office”.

The Democrat and her team “were aware, or should have been aware, of the sweeping and apparently illegal nature of the enterprise,” the group claimed.

The NBC News report goes on to break down the misleading controversy, concluding, “There's no evidence of self-dealing or any kind of elaborate scam, two experts told NBC News, which is often the major concern with LLCs and PACs run by the same people.”